Nodes usage
The nodes usage endpoint returns low-level information about REST action usage on nodes.
Path and HTTP methods
GET _nodes/usage
GET _nodes/<nodeId>/usage
GET _nodes/usage/<metric>
GET _nodes/<nodeId>/usage/<metric>
Path parameters
You can include the following optional path parameters in your request.
| Parameter | Type | Description |
|---|---|---|
| nodeId | String | A comma-separated list of nodeIds used to filter results. Supports node filters. Defaults to _all. |
| metric | String | The metrics that will be included in the response. You can set the string to either _all or rest_actions. rest_actions returns the total number of times an action has been called on the node. _all returns all stats from the node. Defaults to _all. |
Query parameters
You can include the following optional query parameters in your request.
| Parameter | Type | Description |
|---|---|---|
| timeout | Time | Sets the time limit for a response from the node. Default is 30s. |
| cluster_manager_timeout | Time | Sets the time limit for a response from the cluster manager. Default is 30s. |
Example request
The following request returns usage details for all nodes:
GET _nodes/usage
Example response
The following is an example response:
{
"_nodes" : {
"total" : 1,
"successful" : 1,
"failed" : 0
},
"cluster_name" : "opensearch-cluster",
"nodes" : {
"t7uqHu4SSuWObK3ElkCRfw" : {
"timestamp" : 1665695174312,
"since" : 1663994849643,
"rest_actions" : {
"opendistro_get_rollup_action" : 3,
"nodes_usage_action" : 1,
"list_dangling_indices" : 1,
"get_index_template_action" : 258,
"nodes_info_action" : 152665,
"get_mapping_action" : 259,
"get_data_streams_action" : 12,
"cat_indices_action" : 6,
"get_indices_action" : 3,
"ism_explain_action" : 7,
"nodes_reload_action" : 1,
"get_policy_action" : 3,
"PerformanceAnalyzerClusterConfigAction" : 2,
"index_policy_action" : 1,
"rank_eval_action" : 3,
"search_action" : 592,
"get_aliases_action" : 258,
"document_mget_action" : 2,
"document_get_action" : 30,
"count_action" : 1,
"main_action" : 1
},
"aggregations" : { }
}
}
}
Required permissions
If you use the Security plugin, make sure you set the following permissions: cluster:manage/nodes or cluster:monitor/nodes.